All categories

3 years ago

Solve each equation (x+8)(x-2)=-9

Mathematics

2 answers:

Nesterboy [21]3 years ago

5 0

X=1, x=-7 would be the correct answer.

Reptile [31]3 years ago

4 0

Hi

1)(x+8)(x-2)=-9

2) x^2−2x+8x−16=−9

3) x^2+6x−16=−9

4) x^2+6x−16+9=0

5) x^2+6x−7=0 
6) (x−1)(x+7)=0

7) x=1,−7

I hope helped ^-^

I hope that you give me a brain

You might be interested in

Julianne opens a dance studio. Her start-up costs for the building, advertising, and supplies $52,000. Each day, she spends $650

Yuki888 [10]

The equation is: $960d-650d=52000$ and Julianne will begin making a profit after 168 days.

Explanation

Her total start-up cost is $52,000.

Each day, she spends $650 on operating costs (like utilities and wages) and she earns $960 per day from her students' lesson fees.

If the number of days to overcome the start-up cost is $d$ , then

the total operation cost spent in $d$ days $= \$650d$ and

the total students' lesson fees earned in $d$ days $= \$960d$

Part A: The equation to represent the situation will be: $960d-650d=52000$

Part B:  Julianne will begin making a profit when....

$960d-650d>52000\\ \\ 310d>52000\\ \\ d>\frac{52000}{310}\\ \\ d >167.741... \approx 168$

So, Julianne will begin making a profit after 168 days.

5 0

3 years ago

Solve 5/8+3/4 -2/3-5/6

alexira [117]

Answer:

-.125

Step-by-step explanation:

5/8 + 3/4 solve

2/3 - 5/6 solve

then subtract your numbers

3 0

3 years ago

Read 2 more answers

17x - 400 = 250 + 30x

ruslelena [56]

-50 i hope this helps.

4 0

3 years ago

Read 2 more answers

Find the value of n in the equation 6.2n – 3.7n = 85 + 45

qwelly [4]

Im not sure but i found the answer as n= 52

8 0

3 years ago

How to simplify 2y + 4 + 5y +8 =?

Sergio039 [100]

2y + 4 + 5y + 8=
7y + 4 + 8=
7y + 12=

6 0

3 years ago

Read 2 more answers